Signal-sounder.



w. BAUMGARTNER.

SIGNAL SOUNDBR. APYLIOATION I I LED APBJS, 1914.

1,1 1 3,400, Patented Oct. 13, 1914.

WITNE88E8: l/Vl/ENTUI? I [ll/km flay M! ,S'. (M y 7 7 flux ATTORNEY THENORRIS PETERS CO. PHOTO-LITHCL. WASHINGTON. D C.

WILLIAM BAUMGARTNER, 0F MENDOCINO CITY, CALIFORNIA.

SIG-NAL-SOUNDER.

Specification of Letters Patent.

Patented Oct. '13, 1914..

Application filed April 6, 1914. Serial No; 829,781. a

To all whom it may concern- Be it known that I, WILLIAM BAU'MGART- NER,a citizen of the United States, residing at Mendocino City, in thecounty of Mendocino and State of California, have invented certain newand useful Improvements in Signal-Sounders, of which the following is aspecification.

My invention relates to that class of signal-sounders in which reeds arevibrated by a fiuid current underpressure.

My invention is applicableto any use requiring the sounding ofa signal,the volume of sound being controlled by the size of the device and itstone or pitch being in accordance with the reeds used. The pressurecurrent may be steam,or air, or any gaseous fluid and the source ofpressure maybe varied according to circumstances and the use to whichthe device is put. For the sake of illustration and description, Iwill,disclose the device in the shape of a horn, such as may be used forautomobiles, though it is to be understood that it may assume var ousshapes and sizes and it may be provided with various sound-amplifiers. 1

The object of my invention 18 to provide a simple signal-sounder,adapted for wide limits of volume and pitch, and to this end my.invention consists in the novel signalsounding device which I shall nowfully describe by reference to the accompanying drawings, in which-Figure 1 is a longitudinal section of my device, thesound-amplifienbeing in elevation. Fig. 2 is a perspective view of thepair of opposing spaced reeds. Fig. 3 is a cross section on the line mmof Fig. 1.

Fig. i is a cross section on the line y-y of Fig. 1.

1 is a union indicating a connection for the device to any suitablesource of fluidpressure.

2 is a pipe-section forming the housing for the reeds. This housing isfitted at its rear end to the union 1, and said rear endocarries a crossbar 3. In the forward end of the housing is fitted or provided a barrieror block a with a slot 5. To the forward end of the housing 2 is fitteda sound-carrying pipe 6, the rear end of which is enlarged to form achamber 7 which, from its function, may be termed a reverberatingchamber.

To the forward end of the pipe 6 is fitted the sound-amplifier ortrumpet 8. The

reeds are 9. These, in their best form, are

metallic.- There is a pair of these" reeds which may be formedofa'single piece bent double'or twoseparate pieces; ,The reeds lieopposite and spaced from one another. At their rear ends they are fittedinto the cross bar 3 of the reed-housing 2. thence pass forwardly insaid housing, wholly free thereof and of eachother, and freely throughthe slot 5 in the forward vblock 4 and their extremities are best causedoped by the reverberating chamber 7 of the pipe 6.

They

In operation, the fluid pressure admitted to the rear end of thereed-housing 2 and" passing out'through the contracted slot 5 of theblock l will cause the reeds to vibrate,

and theirfree extremities actingvery much 3 like the lips of a humanoperator will, in con unction with the reverberating chamber, produce 7a characteristic sound very se viceable as a signal. I

I cla1m:

1. In a signal-sounder, the combination. of

a pipe for receiving a pressure.fluid-current; a pair of opposmg, spacedreeds within. said pip'e,said reeds being fixed at one endand thenceextending in the same direction as the How of the fluid current; and aslotted barrier in the pipe through the slot'in which the freeextremities of the reeds pass and beyond which they project. I

2. In a signal-sounder, the combination of a pipe for receiving apressure fluid-current; a pair of opposing, spaced reeds within saidpipe, said reeds being fixed at one end and thence extending in'the samedirection as the flow of the fluid current; and a slotted barrier in thepipe, through the slot in which the free extremities of the reeds passand beyond which they project, said pipe having. an

enlarged chamber enveloping the free ex-' tremities of the reeds.

3. In a signal-sounder, the combination of ties within said chamberbeing divergent one through the slot in which the forward ends.

of the reeds pass and beyond which they projeot; a sound carrying pipesecured to. the forward end of the reed-housing and enve1- oping theprojecting ends of the reeds beyond the slotted block; and a connectionwith a source of fluid-pressure at the rear end of the reed housing.

5. In a signal-sounder the combination of a pair of opposing, spacedreeds; a housing for said reeds having a support at its rear end inwhich the rear ends of the reeds are fixed, and a slotted block at itsforward end through the slot in which the forward ends of the reeds passand beyond which they project; a sound carrying pipe secured to theforward end of the reed-housing and formed with an enlarged chamberenveloping the projecting ends of the reeds beyond the slotted block;and a connection with a source of fluid-pressure at the rear end of thereed housing.

6. In a signal-sounder, the combination of a pair of opposing, spacedreeds having their forward ends divergent one from the other;

a housing for said reeds having a support at cured to the forward end ofthe reed-housing and enveloping the projecting divergent ends of thereeds beyond the slotted block; and a connection with a source offluid-pressure at the rear end of the reed housing.

7. In asignal-sounder, the combination of a pair of opposing, spacedreeds having their forward ends divergent one from the other; a housingfor said reeds having a support at its rear end in which the rear endsof the reeds are fixed, and a slotted block at its forward end throughthe slot in which the reeds pass and beyond which their forwarddivergent ends project; a sound-carrying pipe secured to the forward endof the reed-housing and formed with an enlarged chamber enveloping theprojecting divergent ends of the reedsbeyondthe slotted block; and aconnection with a source of fluid-pressure at the rear endof the reedhousing.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

WVILLIAM BAUMG ARTNER. 'W'itnesses EMIL SEMAN, J r., S. N. MEoUM.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' Washington, D. G.

